[ars]

> You can't very well induce choking to test the options.

Why not?

Put some soft rubber on a string and place it in the airway then try to dislodge it. If you have any problems pull it out with the string.

It wouldn't hurt the person - you can hold your breath for a minute with no problem.

If it's uncomfortable you can spray some local anesthetic in the throat first.

[cornellwright]

Maybe you could try this, but I don't think this is something that any reputable institution's IRB would approve.

I would actually recommend trying what you suggest on cadavers. You'd have to inflate the lungs first though.